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Finding the Fourth Proportional to 275,415.44, 380,050.60 and 194,890.16

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Solution

The fourth proportional to 275,415.44, 380,050.60 and 194,890.16 is: 268,932.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,415.44 : 380,050.60 = 194,890.16 : x
  2. Step 2: Convert to fraction form
    275,415.44/380,050.60 = 194,890.16/x
  3. Step 3: Cross multiply
    275,415.44x = 380,050.60 × 194,890.16
  4. Step 4: Simplify right side
    275,415.44x = 74,068,122,242.10
  5. Step 5: Solve for x
    x = 74,068,122,242.10/275,415.44
  6. Step 6: Final answer
    x = 268,932.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.